Ettrnace attachment



May 8, 1928.

V. VECCHO FURNACE ATTACHMENT Filed May 2. 1927 Parental May-8, 192s.

UNITED STATES 1,668,577 PATENT oFFlcE.

VINCENT VECCHIO, OF BROOKLYN, NEW YORK.

FURNACE ATTACHMENT.

Application lcd May 2,

equivalent having improved and peculiar`- facilities -for extracting a considerable amount of heat from the smoke or products l of combustion that pass normally out through the smoke stack or chimney and .usually Wasted. More definitely, my improvement consists in the arrangement of a specially constructed drum interposed between the furnace and chimney or smoke stack and through which the products of combustion are compelled to pass, said drum being provided with a water jacket and water compartment through the latter of which are larranged a series of fire 'tubes with means for compelling the draft of the products of combustion in two different directions through said drum, said drum being in communication with any suitable source of supply or storage for said hea-ted water.

With the foregoing and other objects in view the invention consists in the arrangement and combination of partshereinafter described and claimed, and while the invention is not restricted to the exact detailsof construction disclosed or suggested herein, still for the purpose of illustra-ting a practical embodiment thereof reference is had to the accompanying drawings in which like reference characters designate the same parts in the several views, and in which- Figure 1 is a side elevation of a conventional furnace showing the course or path of the products of combustion therefrom in connection with my improved heating drum.

Fig. 2 is a diagrammatic plan view of the top of the drum.

4 Fig. 3 an enlarged vertical section of the top of tlilflrum.

Referring now more specifically to the drawings I show at 10 any suitable source of heat such as a domestic furnace from which leads outward and upward a lue 11 toward but remote from the smoke stack connection 12 provided with any suitable draft regulator or damper 13.

Interposed between the lues 11 and 12-v is my improved heat extracting drum 14 of any suitable size, design, or proportions, but comprisin a shell 15 shown as cylmdrlcal in form, t e shell having an upward exten- 1927. Serial No. 188,100.

sion 16 constituting a hollow cylindrical water jacket located between the flues 11 and 12, the water jacket being provided with an in'let opening 17 and an outlet opening 18 with which said iiues 11 and 12 communicate directly and with the interior chamber or space 19 of the head of the drum. A vertical partition 20 subdivides the head space above mentioned into practically two equal portions and prevents the direct communication from one iue to the other. l

The main portion of the drum 14 is equipped with a vertical series of tire tubes 21 spaced parallel from one another, vboth ends of the tubes being open for passage of the products of combustion and sealed by means of heads 22 and 23 at the top and bottom respectively whereby the space surrounding the several tubes may be supplied with water o1' other heat conducting medium as indicated at 24, the water filling the entire drum around the tubes and filling the jacket 16 at the top of the drum. The products of combustion passing from the furnace through the flue 11 enter. the rst compartment of the hollow head at 19 Aand are thence reflected downward by means of the/partition 20 so as to pass downward entirely through the first set of tire tubes, passing thence through the bottom space 25 and thence upward through the remaining set of fire tubes into the second` compartment of the head space 19 within the water jacket 16 and thence out through the opening 18 into the chimney connection 12. Naturally the greatest amount of heat is received within the water jacket portion of the drum from which the water in the jacket 16 is heated directly and from which the water is drawn or circulates to the heating system of the building or to a tank such as indicated conventionally at 26 for use as may be required for domestic or other purposes.

The head or upper portion of the drum structure is provided with a removable cap 27 within which are journaled a series of shafts 28 each having at its upper end, outside the cap, means for rotationof the shaft, the same being indicated as in the nature of a gear wheel 29, all the gears of one half the series being in mesh with one another as shown in Fig. 2. One of the shafts as 28 is provided with a squared end for the reception of a wheel or crank 30 for rotation thereof, and this rotation will cause the rotation of all the shafts in the same group.

CPL

Each. shaft, suspended from the cap 27, carries a spiral baille member 31 which is coextensive with one of the fire tubes 21 and within which it is normally located. These baiiles are made of flat sheet metal or its equivalent and serves immediately to cause the products of combustion while passing through the tire tubes to impinge fully against the side walls thereof for the best transfer of the heat to the surrounding water, and secondly, the balies serve as means to keep the lire tubes clean from soot, ashes, or other deposit which would interfere with the heat transfer. The rotation of the shafts and battles from time to time by means of the crank `or Wheel applied as indicated insures that they shall be kept clean from deposit. Soot or ashes so deposited and scraped from the inner surfaces of the tubes will fall into the pit 25 from which the same may be removed when desired through the door 32. Preferably the lower end of each of the batHes is ointed as shown at 31a for easy entrance of tiie baffles into the tubes when assembling the mechanism. It will be understood that for repair or inspection of the mechanism, the cap 27 and all the shafts and baes may be elevated and removed from the drum as a whole at any time and for replacing of course the pointed ends of the baiies assist materially in causing the bailies to enter the respective tubes.

I cla-im:

In a device of the class set forth, a drum, means to supply the drum with Water, a series of fire tubes assing lengthwise and parallel to one anot 1er throuvh said drum, flue connections for one end of to cause the products of combustion to pass from one of said connections lengthwise through one setv of lire tubes and thence in the other direction through the other set thereof to the other flue connection, a series of battles located in said re tubes and serving to cause maximum transfer of heat therefrom to the surrounding water, and means to supportsaid baiiles, the means to support the bales being a cap removably the drum, means supported upon one end of the drum and a' sor'res of shafts journaled in said cap and connected to the respective baffles, means being provided to rotate the baies and shafts simultaneously lin groupsfor scraping the interior surfaces of the lire tubes.

In testimony whereof I aiix my si nature.

VINCENT VEC() IO. 

